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| author | Chang S. Bae <chang.seok.bae@intel.com> | 2021-10-26 15:25:25 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-10-28 15:35:27 +0300 |
| commit | 101c669d165d341b8c35424eb3878138044394ef (patch) | |
| tree | cbc909ffd919ceabc57afb2b6ee3bcb342f9171d /lib/debugobjects.c | |
| parent | 6a3e0651b4a00daa314c59d6e4228dfa7a986983 (diff) | |
| download | linux-101c669d165d341b8c35424eb3878138044394ef.tar.xz | |
selftests/x86/amx: Add context switch test
XSAVE state is thread-local. The kernel switches between thread
state at context switch time. Generally, running a selftest for
a while will naturally expose it to some context switching and
and will test the XSAVE code.
Instead of just hoping that the tests get context-switched at
random times, force context-switches on purpose. Spawn off a few
userspace threads and force context-switches between them.
Ensure that the kernel correctly context switches each thread's
unique AMX state.
[ dhansen: bunches of cleanups ]
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211026122525.6EFD5758@davehans-spike.ostc.intel.com
Diffstat (limited to 'lib/debugobjects.c')
0 files changed, 0 insertions, 0 deletions